Stella is surfing the Internet to look for affordable apartments in New York City. Every time she clicks on a link to a webpage, she gets interrupted by floating ads. The ads stay on the screen for 30 seconds. She does not know how to disable them and finds them extremely irritating and disruptive. In a basic communication model, these floating ads are an example of .

In a heat transfer course, we can derive the equation for the temperature distribution in a flat rectangular plate. in this example, we will look at a plate at steadystate with three sides being held at t1, and one side held at t2. the temperature for any location on the plate, t(x,y), can be calculated by where create a function (prob3_5) that will take inputs of vectors x and y in feet, scalar n, scalars l and w in feet and scalars t1 and t2 in degrees fahrenheit. it will output a matrix t which is the temperature of each x and y locations. t will have the number of columns equal to the number of elements in x and rows equal to the number of elements in y. though this can be done without loops (perhaps more efficiently), your program must use a nested loop.